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SEWING MACHINE (No Model.)

m1391579. PatentedVP-erb. 12, 18a-9.

3513 bep/U @t (No Model.)

SEWING MACHINE.

Patented Feb. l2, 1889.

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J. BARTLETT'S: G. B. WIGGIN.

VSEWING MACHINE.

N0. 397,579. Patented Feb. 12, 1889.

M ayffm (No Model.) 4 Sheets-Sheet 4. J. BARTLETT 8v G. B. WIGGIN.

SEWING MACHINE. No. 397,579. Patente-d Feb. 12, 1889.

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JONATHAN BARTLETT, OF EPPING, A ND GEORGE BSIVIGGIN, OF SOUTH NEIVMARKET, NEI/V HAMPSHIRE, ASSIGN ORS OE ONE-HALF TO JOHN IV. HOARD, OFPROVIDENCE, RHODE ISLAND.

SEWING-MACHINE.

SPECIFCATCN forming part of Letters Patent No. 397,579, dated February12, 1889.

Application iled July 28, 1887. Serial No. 245,561. (No model.)

.To @ZZ whom, t 71mg/ concern:

Be it known that we, JONATHAN Bairrtn'r'r` and GEORGE B. lVIGGIN, otEpping and South New Market, respectively, in the county of Rockinghamand Sta-te of New' Hampshire, have invented certain new and usefulImprovements in Sewing-Machines; and we do hereby declare ,that thefollowing is a full, clear, and exact description ot the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked thereon, which Vform a part ot thisspeciiication.

Our invention relates to sewing-maifhines generally, but moreparticularly to the class ot' waxed-thread machines adapted for sewingslices or other articles made from leather or other kindred material,and has special ret erence to the means for feeding the material by theagency of the needle.

In the accompanying drawings, Figure l is a front elevation of a machineembodying our invention. Fig. 2 is an elevation with the covers of thetwo cam-boxes and their attachments removed. Fig. 3 is a-sideelevation.A Fig. 4 is a vertical section from front to rear. Fig. 5illustrates two plan views showing ditferent positions ot the curvedhook `or whirl; Fig. (l, a detail of the horn; 7, a view of the underside of the machine. Figs. 8 and 9 illustrate details of ditl'erentpositions of the needle and in relation to the cast-oft. Fig. l0 is adetail view of the lever for operating the presser-foot and itsconnections.

Similar letters represent like parts in all the tigures.

A is the base ot the machine, and l B are the two vertical standardslFor supporting the mechanism.

O is the drivingsln-tl't, which passes through the standards I3 havingthe driving-\\'heel D at one end and the camv E at the other. Secured tothe drivingshaft O between the standard I3 and wheel D .is a gear, F. Asmall gear or pinion, Gv, is journaled on the standard B under the gearF and engages with said gear, while a third gear, H, enga-ges with thegear G, and is secured und fr said gear upon a shaft, I, which passesthrough the standards B B. To the opposite end ot' said shaft from thegear H is a cam, J, for a purpose hereinafter to be described.

Keyed to the shaft O between the standards B and B is another cam, K,also for a purpose hereinafter to be described.

L is an oscillating frame or standard, which is pivoted to the top ofthe standard B and rests against the same. This traine L has a box orcasing, M, in which the cam E and other parts of the machine are adaptedto work; and N is an opening in the frame L, in which revolves the camJ.

The cover O ot' the casing lll is adapted to be screwed or otherwisesecured to the same, and it supports the needle-bar I and .adjacentmechanism. The needle-bar P is adapted to be held and to slide throughholes in the brackets A A?, which form a part of the cover O.

C is a longitudinal vertical slot extending through the cover O, and inwhich the bar D adapted to slide.

Secured near the lower end of the slide D is a sleeve, a, which extendsoutward from the slide, and through which the needle-bar passes and issecured by a thumb-screw, c. N ear the lower end of the slide D', anderr tending inwardly from the same, is a block or projection, b, andattached to said slide,

'near its upper end, is another block or proj eccam E is curved on oneside, E', and .straight on the other side, E2, so that when the camrevolves in one direction the curved surface will ride over and operatethe blocks b b', while any turning to the opposite direction will bringthe shoulder which is formed by the straight side D'2 in contact withthe blocks and prevent any further turning in that direction. The blockh is adjustable, so as to regulate the length of the loop of the thread.lV hen it is near to the block b, it will be operated upon by the cam Efor a longer period than if it were far a-way t'rom the block by, andthe needle-bar and needle, and eonscqiientl y the loop e', would beraised higher and the loop z lengt-hened.

Q is a sleeve, which is adjnstably attached to the needle-bar l 1)etween the upper b racket, A2, and the sleeve u. The needle-bar P has alongitudinal groove, or slot, (72, in its side, in which the cast-ottlbar c rests, and which allows the needle-bar and said cast-olif bar toslide longitudinally relatively to each other. The groove extends downsaid bar to within a short distance of the lower end, and at the metalpiece i. Ahorizontal projection or base,

point at which said groove terminates the rod is cut away for a shortdistance, so as to form a shoulder, e', against which a projection or ashoulder near the lower end of the cast-oit' bar is adapted to strike.The needle p and cast-off e2 are attached to the needle-bar and east-oftbar, respectively. Secured tothe npper end of the cast-ott' b ar is asmall sleeve, es, which projects out beyond the slot d?.

f/ is a small rod, which is parallel with the needle-bar, and whichpasses through said sleeve e, the sleeve Q, the bracket A2, and atension-bracket, A.

7L 7L 7L,2 are three sleeves adj ustabl y attached to the rod g, thesleeve 7L being attached to the lower end of said rod below the sleevee3, 7L and h2 being attached to said rod-one on each side of the sleeveQ-at a sufficient distance to allow a small play of the sleeve Q betweenthe sleeves 7l and 7L?. A coil-spring, 71'1, encircles the rod betweenthe sleeve ci" and the sleeve 7i', so as to keep the sleeves ci; and hincontact, and consequently to keep the rod q tirml y in place.

R R are brackets extending out beyond the front of the machine, andtln'tuigh 'vertical holes in the ends oi these braclv'eisthepresserit'oot barS adapted to slide. The pressert'oot S is attached tothe presser-foot bar in any appropriate way. A eoil-sjning, S2,encircles the bar S and between the bracket R and an adjustable sleeve,Si, on said bar. The function ol" this spring is to press thepresserfoot down upon the horn, upon which the goods are placed.

Pivoted to the bracket R is a lever, T, one end of which has a concaverecess upon its upper side, which is adapted to press against the underside of a roller, t, j ournaled to the bar S above the bracket- R. Tothe other end of the lever T is loosely pivoted a vertical rod, t.

U is a lever which is pivoted to the standard B on the other side of theshaft C from the rod t', and this lever has a hole through which thelower end of the rod if passes and which is large enough -to allow of afree movement of the rod in said hole. The lower end of the rod t isscrew-threaded and has a nut below the lever U to keep the rod andleverl together and to adjust them relatively to each other. The lever Upasses under the cam K and is adapted to beheld against the said cam bythe nut on the en d of the rod t. A handle, 11, is attached to the treeend of the lever U to allow the presser-toot to be raised by hand.

The opening N in frame L is substantially square, and in one side ofthis opening is a three-sided rcctangular-shaped piece of metal, t',with its longitudinal side parallel with the vertical sides of the box.The cam or eccentric J is adapted to oseillate the vtraine L by strikingagainst the metal piece 'i and the opposite side ot the openingalternately. The len gth of the oscillation of this f. rame L isregulated by a thumb screw, 7, which passes through the standard andbears against the V, extends from the lower end of the frame L, init'rontof the saine and swings with it. This frame supports thethread-loop and the looper mechanism. This projection or base Vconstitutes, as will be seen, a portion of the horizontal part or bed ortable oit the machine, the remaining portion of the bed being tixed.

Y is a long lever pivoted at 7.alo the bottom of the base V, and having`a segmental rack, 7e', at its Yforward end. Near that end ot the leverV', which is opposite the rack 7; and extending toward the center ot thelever, is a longitudinal slot, 7s?. A pin, 7, passes through said slotand through a slot, i', in the base A, said slot extending in a linevfrom the frontto the back of the machine. A collar, 72, on the pin lrests against the under side of the base A, and a nut, in, passing overthe upper screwthread portion, ym, ol' the pin 7, serves t0 adjust saidpiu anywhere along` the slot 7. A pinion, n, engages with the rack 7.1,and another pinion, h, enga is with the pinion n. lloth ol? thesepinions z i le journaled upon the base V, and the journal et' the pinionIn consists of a rod, n?, which extends np through the base V andthrough a tube or sleeve, n3, attached to said base. In the upper end ofthe pivotal rod n2 is removably attached, in any approjnriate manner, acurved threadcarrier or whirl, yr, having an eye, e', nearits tree endor outer extremity. The adjusting mechanism 7, 7', 72, lnl, and nl ol'the lever Y serves to regiiilate the extent of the oscillation of thehook or whirl r, and thus regulatel the length ot" stitch. lt alsoassists in regula-ting the distance ot' oscillation et the frame L. 4

lV is the horn or support on which the goods are to be placed, and it isattached to the base A by screws or otherwise. It has a small horizontalportion, r2, on its top, on which the goods and the presser-foot S areadapted to rest, and a small part oit' this top of and front ol' thehorn are cut away at u, so as toallow room Afor the needle 2) andcast-off ez'to descend and for the loop of the thread. The front wall,w, is also slightly IOO IIO

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swelled out, as at 1r', to allow enough space t'or the oscillation ot'the hook if. The side wall a; of the horn has a hole, fc', in which thethread is adapted to pass before it enters the eye ofthe hook fir.

The operation ot the Amachine is as follows: '.lhe thread i: having beenpassed through the hole af', around the vertical part of the hook i fromback to front, and through the hole t in the end ot the hook, is thenpassed over to the front of the horn XV, resting against the top of thecut-away portion il?. The pressert'oot S- is then raised by the handleot the lever U, and the material to be sewed is placed between thepresser-foot and the horn XV, when the former is allowed to drop uponthe material and hold it in place. The position of the parts will thenbe as shown in Fig. l. The crank or driving wheel D is then turned fromleft to right when facing the front of the machine. The revolution ofthe shaft C by its wheel D will revolve the cam E, an d this will pressagainst the block Z9 and drive t-he needle-bar P down so that the hookof the needle p will pass into the horn lV and below the line of thethread. The descent ot' the needle-bar will also cause the east-oit e2to descend, by reason of the sleeve Q pressing against the sleeve orstop 71. A little farther revolution otf the shaft C will cause the camK to operate the lever U, and thus raise the presser-foot S', so as toallow the :material or work to be fed onward. The revolution of theshaft C will also cause the sha tt l to revolve through theinstrumentality of the gears li (t ll, and just after the cam K hasbegun to operate the lever U to raise the presser-toot the cam .T willcome in contact with the lrec[angular piece and cause the trame L tooseillate to the left. The needlebar l, being hung on this standard,will also be carried to the lett, and the needle, being through thematerial, will carry the same with it to the end of the stroke. Theoscillation ot the trame L to the lett willcause the front end ot' thelever Y and its rack la to move in the same direction, and will causethe pinion n', its shatt if, and hook c to move in-the direction of thearrows in Fig. The thread at the end ol' the oscillation to the lettwill be t-aut from the vertical part ot the hook /U to its eye t" and bepressed against t-he hook ot the needle p. A further revoli'ition of theshaft will release the cam K from the lever U, so the presser- ['ootwill descend, the cam E will strike against the upper l iloek, b', andthus raise the needlebar l and needle p, which will carry the loop ofthe thread with it, as shown in Fig. S. As the' needle-bar ascends, itwill slide on t-he cast-ott bar e until the sleeve Q strikes against thestop lz?, when the cast-ott e2 will close the hook of the needle andretain the thread on the same, as shown in Fig. 9, and theneedle p andcast-oit will rise together. A little further revolution of the shaft Cwill cause the cam J to strike against the right-hand side of the box N,and thus cause the frame L to oscillate to the right. The hook or whirli will then turn in the opposite direction from that in which it turnedbefore and carry the thread back llor the next stitch. The cam E willthen strike against the block l) and force the needle down belowthecast-off e2, and so relieve the loop .e ot" the thread. The operation isthen repeated.

The distance of the oscillation ofthe frame L determines the length ofthe feed of the material to be sewed and also of the stitch. Thedistance is regulated by the lever V and screw-pin Z, before named, Byadjusting the pin Z in the slide 71:2 nearer to the fulerum l; a longerfeed and stitch are obtained.

Our machine can be used for sewing almost any material; but it is moreparticularly adapted for sewing shoes, either turned or welted, thenarrow edge afforded by the horizontal Vtop e2 of the horn lVbeingparticularly adapted for welted goods.

This application having been divided into four applications, we do notherein claim anything claimed in either of the other three of thedivision applications numbered, respectively, 972,745, 272,7l6, and272,7-t7, all iiled May El, 1889.

lVe claiml. The vibratory frame L, pivoted at its upper end, and theprojecting base V, which supports the thread-looping mechanism carriedby and vibrating with said frame, combined with the needle-bar arrangedto move in right lines vertically lengthwise of such frame and also tovibrate with it and said base, substantially as shown and described.

i. In combination, the vibratory frame L,V

pivoted at its top and having a projecting' base, V, as described, thelooping mechanism supported on suoli vibrating bed or base, cover O,brackets A A' on said cover, needlebar P, needle, and a cani forvibrating the frame L, substantially as shown and described.

3. In combination, the vibratory trame L, having a casing, M, andopening N, shafts (l and I and their respective cams or eccentrics,removable cover O, needle-bar P, supported on frame L, brackets A A2,and blocks b b', substantially as shown and described.

4. In combination, the vibratory frame L, having a casing, M, andopening` I, and cam E, the cam or eccentric J, adjustable threesidedpiece 1I, and its adj listing-screw Z', substantially as shown anddescribed.

In testimony whereof we affix our signatures in the presence of twowitnesses.

JONATHAN BARTLETT. GEORGE B. WIGGIN. Witnesses:

CHARLES E. lATWooD, WILLIAM B. MORRILL.

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